Authors:
Leo Egghe Hasselt University; Antwerp University, IBW Agoralaan, B-3590 Diepenbeek, Belgium; Wilrijk (Belgium) Agoralaan, B-3590 Diepenbeek, Belgium; Wilrijk (Belgium)

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Ronald Rousseau Antwerp University, IBW; KHBO (Association K.U.Leuven), Industrial Sciences and Technology Department of Industrial Sciences and Technology Zeedijk 101 Wilrijk (Belgium); Oostende (Belgium) BE–8400 Oostende Zeedijk 101 Wilrijk (Belgium); Oostende (Belgium) BE–8400 Oostende

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Summary  

The h-index (or Hirsch-index) was defined by Hirsch in 2005 as the number h such that, for a general group of papers, h papers received at least h citations while the other papers received no more than h citations. This definition is extended here to the general framework of Information Production Processes (IPPs), using a source-item terminology. It is further shown that in each practical situation an IPP always has a unique h-index. In Lotkaian systems h = T1/a, where T is the total number of sources and α is the Lotka exponent. The relation between h and the total number of items is highlighted.

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Scientometrics
Language English
Size B5
Year of
Foundation
1978
Volumes
per Year
1
Issues
per Year
12
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0138-9130 (Print)
ISSN 1588-2861 (Online)